Sierra Wireless product portfolio now Windows Vista Ready

Vancouver, B.C.-February 06, 2007

Sierra Wireless (NASDAQ: SWIR - TSX: SW) today announced it has validated its current PC Card and embedded module product portfolio on Windows Vista. Windows Vista WHQL signed drivers are ready for all current Sierra Wireless EV-DO and HSDPA products, including the AirCard® 595, AirCard 580, AirCard 875, AirCard 850, AirCard 860, and AirCard 775 PC cards, as well as the MC5720, MC5725, MC8775, MC8765, MC8755, and EM5625 embedded modules. In addition, all future Sierra Wireless products, including the company’s upcoming ExpressCard and USB modems, will ship as Windows Vista Ready.

Validation from Microsoft’s Windows Hardware Quality Labs is achieved through a series of rigorous tests designed to ensure the compatibility and reliability of devices interacting with the Windows operating system. The program is designed to assist consumers in identifying quality products that are easy to install and operate without interfering with other components in the system.

“The performance of a wireless device is affected by many things, including its hardware design, the way it interacts with the network, and the way it interacts with its host computer,” said Jim Kirkpatrick, chief technology officer for Sierra Wireless. “Our collaboration with Microsoft to ensure that our product portfolio is Windows Vista Ready is a crucial part of our ongoing effort to ensure that we can deliver the latest technology without compromising our commitment to provide the best, most reliable user experience possible for our customers.”

“Windows Vista offers significant improvements for how people can work together from remote locations, recognizing that wireless connectivity has become increasingly accessible and important,” said Hong Liu, program manager of wireless wide area networking for Microsoft Corp. “We are pleased to collaborate with Sierra Wireless to ensure our customers can choose a tested, reliable wireless connectivity solution that will help them take advantage of all that Windows Vista has to offer mobile users.”

For further information and details about support for particular products, see www.sierrawireless.com/vista, which will be regularly updated to reflect ongoing developments.

Sierra Wireless will be demonstrating the Windows Vista-tested Sierra Wireless AirCard PC card and embedded module products in the Sierra Wireless Pavilion (AV99) at 3GSM World Congress in Barcelona, Spain, February 12-15, 2007.

About Sierra WirelessSierra Wireless (NASDAQ: SWIR – TSX: SW) develops and markets reliable, high quality wireless communications products that provide mobile professionals with data and voice access to wide area wireless networks. The Sierra Wireless product portfolio includes the award-winning AirCard® line of wireless modems, embedded modules for original equipment manufacturers (OEMs), and the MP line of rugged, vehicle-mounted wireless modems. Sierra Wireless also offers professional services to OEM customers during product development, leveraging the company’s expertise in wireless design and integration to provide built-in wireless connectivity for notebook computers and other portable computing devices. Sierra Wireless is headquartered in Richmond, British Columbia, Canada, with additional offices in Carlsbad, California, London, and Hong Kong. For more information about Sierra Wireless, please visit www.sierrawireless.com.

“AirCard” is a registered trademark of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners.

Forward Looking StatementsThis press release contains forward-looking statements that involve risks and uncertainties. These forward-looking statements relate to, among other things, plans and timing for the introduction or enhancement of our services and products, statements about future market conditions, supply conditions, channel and end customer demand conditions, revenues, gross margins, operating expenses, profits, and other expectations, intentions, and plans contained in this press release that are not historical fact. Our expectations regarding future revenues and earnings depend in part upon our ability to successfully develop, manufacture, and supply products that we do not produce today and that meet defined specifications. When used in this press release, the words "plan", "expect", "believe", and similar expressions generally identify forward-looking statements. These statements reflect our current expectations. They are subject to a number of risks and uncertainties, including, but not limited to, changes in technology and changes in the wireless data communications market. In light of the many risks and uncertainties surrounding the wireless data communications market, you should understand that we cannot assure you that the forward-looking statements contained in this press release will be realized.

Sierra Wireless is an IoT pioneer, empowering businesses and industries to transform and thrive in the connected economy.

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